Kuniteru Emoto is a central antagonist in the series Kamen Rider Fourze, serving as the human identity of the Sagittarius Zodiarts. As the head of the school's science club and a teacher at Amanogawa High School, Emoto is a brilliant but secretive figure. He orchestrates many of the events involving Zodiarts, manipulating students to further his own goals. His transformation into the Sagittarius Zodiarts reveals his ambition and complex motivations, making him a formidable opponent for the Kamen Riders.